X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 1 [X] Return-Path: Sender: To: lml Date: Thu, 01 Feb 2007 19:00:47 -0500 Message-ID: X-Original-Return-Path: Received: from imo-m18.mx.aol.com ([64.12.138.208] verified) by logan.com (CommuniGate Pro SMTP 5.1.5) with ESMTP id 1805163 for lml@lancaironline.net; Thu, 01 Feb 2007 17:51:34 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.138.208; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-m18.mx.aol.com (mail_out_v38_r7.6.) id q.c21.102ef23a (40522) for ; Thu, 1 Feb 2007 17:50:42 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: X-Original-Date: Thu, 1 Feb 2007 17:50:40 EST Subject: Re: [LML] Re: Wing positive pressure X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1170370240" X-Mailer: 9.0 Security Edition for Windows sub 5358 X-Spam-Flag: NO -------------------------------1170370240 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Yeah, gee I always wondered how those aerobatic planes with wings symmetric about the chord line were able to fly. Uh, maybe AOA contributes something to lift, maybe. As to props that look like wings - it is interesting to see the thrust/air flow 90 degrees to the plane (geometric) of the rotating prop. I was going to say "as it screwed its way thru the air" but I realized that the electric fan in my hangar is not screwing anything. Puzzled in Illinois (as usual), Grayhawk -------------------------------1170370240 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Yeah, gee I always wondered how those aerobatic planes with wings symme= tric=20 about the chord line were able to fly. Uh, maybe AOA contributes=20 something to lift, maybe.

As to props that look like wings - it is interesting to see the thrust/= air=20 flow 90 degrees to the plane (geometric) of the rotating prop. I=20= was=20 going to say "as it screwed its way thru the air" but I realized that the=20 electric fan in my hangar is not screwing anything.

Puzzled in Illinois (as usual),

Grayhawk

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